Built in 1910 for David W John, a merchant, and designed by the pioneering architects Arthur and Walter Reid, Avalon is distinguished by its double storey bay window and open balcony and veranda giving extensive views across Parktown to the northern ridge. It was respectfully adapted and restored by the highly creative architect Karen Wygers as her own home in 2012. The house highlights the Edwardian elegance which dominated Seymour Avenue.